Despite all the talk of business opportunities in Burma, the internet speeds there are lame. If you needed to get faster internet over the border... couldn't you theoretically rent an office on the Mae Sai side of the river... like right on the river. Then share your connection over wifi across the river to a nearby location in Burma? Or is that crazy talk?

Depending on the geography (you'd need line of sight between the two points) and hardware you could do a point to point link no problem.

So no, it's not crazy, you'd just need someone with a little experience to set it up.